RU26682U1 - WINDING TRANSFORMER - Google Patents

Description

WINDING TRANSFORMER

The utility model relates to electrical engineering, in particular, to transformer construction and can find application in

Known transformer winding containing n layers, in

of which each coil is made of parallel conductors, the number of which exceeds one, located in the axial direction, and taps connected to the first and last turns of L. 1.

The transformer winding of the design described in L.1 is characterized by a significant “run-off of the ends of the winding (due to the fact that the ends have a large angle with respect to the horizontal), leading them to increase the size of the window of the transformer magnetic circuit and to increase the no-load loss, as well as to reduce electrodynamic resistance windings.

A transformer winding is also known, containing two layers in which each coil is made of conductive material in the form of a bus, taps connected to the beginning and end of the winding, the turns of each pair of layers have the same winding direction and are connected in parallel to L. 2.

However, the transformer winding according to L.2 is characterized by limited functionality, due to the impossibility of providing winding parameters with a large number of turns, i.e. with the number of turns exceeding one turn, with a minimum consumption of conductive material of the winding.

A useful model solves the problem of creating a transformer winding, characterized by wide functional

opportunities due to the provision of winding parameters with a large number of turns with a minimum consumption of conductive material.

To solve the problem in the transformer winding, it contains n layers, some of which have the same direction of winding, each turn is made of conductive material in the form of a bus, bends connected to the beginning and end of the winding, it is proposed, according to this utility model, to combine the layers in pairs, one of the layers of which has the direction of winding the turns opposite to the other, and the turns of this pair of layers are connected in series, while the layers of at least one pair are located adjacent in the radial direction.

The utility model is illustrated by the example of the drawings (Fig. 1 and 2), which schematically depicts two variants of the inventive transformer winding.

The winding contains four layers 1, 2, 3, 4. In each layer 1 h 4 each turn 5 (for example, four turns are represented in each layer) is made of conductive material in the form of a busbar.

The coil has a start 6 and an end 7, indicated in FIG. 1 and 2, respectively, "a and" x.

A part of the winding layers has the same winding direction. In particular, in FIG. 1 layers 1 and 2, as well as layers 3 and 4, respectively, have the same winding direction; in FIG. 2 layers 1 and 3 and, respectively, layers 2 and 4 also have the same winding direction.

Therefore, shown in FIG. 1 layers 2 and 3 and, respectively, layers 1 and 4, forming pairs, have in each of the listed pairs, the winding direction is opposite to each other, and the turns of these pairs of layers are connected in series. Moreover, 1

the layers of one of the pairs, in particular, formed by a pair of layers 2 and 3 (see Fig. 1), are adjacent in the radial direction.

Similarly, shown in FIG. 2 layers 1 and 2 and, respectively, layers 3 and 4, forming pairs, have in each of the listed pairs, the direction of winding is opposite to each other, and the turns of these pairs of layers are connected in series. The layers of three pairs, in particular, formed by pairs of layers, respectively: 1i2, 2iZ, Zi4 (see Fig. 2) are located nearby in the radial direction.

In the inventive transformer winding, the number of turns exceeds 1. The design provides horizontal ends (as a result of the exclusion of “runaway”), which leads to a good filling of the winding with active material and high technical and economic performance of the transformer: reduced weight of active materials and reduced no-load losses.

Literature:

1.P.M. Tikhomirov “Calculation of transformers, M., Energoizdat, 1986.

2.Ya.L. Fishler et al. “Transformer equipment for converting plants, M., Energoatomizdat, 1989, p. 94.3

Claims (1)

A transformer winding containing n layers, some of which has the same direction of winding, each turn is made of conductive material in the form of a bus, taps connected to the beginning and end of the winding, characterized in that the layers form pairs, one of the layers of which has a winding direction of turns opposite to the other, and the turns of this pair of layers are connected in series, while the layers of at least one pair are located adjacent in the radial direction.